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肝移植术后胆道并发症严重影响肝移植手术患者的生存时间和质量， 尤其是胆道狭窄。 胆道狭窄根据狭窄发生部位分为吻合口狭窄和非吻合口狭窄， 以前者较为常见。 在本文中， 我们对肝移植术后胆道吻合口狭窄的概念、 病因、 诊断和治疗进行了探讨， 并对美国匹兹堡大学移植研究所处理吻合口狭窄的方案进行了解读， 旨在与国内肝移植外科医师进行经验交流。 [ABSTRACT FROM AUTHOR]